Tag: "remains" at biology news

...tor scientists, the cause or source of the disease remains a mystery, said Dr. Kimberli Miller, a wildlife disease specialist at the Center. Other disease agents known to affect birds, including bacteria, viruses or parasites, have been ruled out, and while microscopic evidence suggests that a neurotoxin may...

...versal screening are insupportablegiven that "lead remains the greatest environmental threat to children in theUnited States." In a related article, staff from CDC's National Center forEnvironmental Health defend their revision as "a systematic approach." Even modestly elevated blood lead levels have...

.... The molecular basis of these forms of alopecia remains a mystery. "With the hairless gene, the real basis of hair loss can begin to beunderstood," says Christiano. "We can now look at the cause -- the genesthemselves -- with the understanding that hormones are important but notprimary." ...

...minatedgroundwater to the channel, the site itself remains polluted. The solution may be in the planting of thestately poplar tree. The use of these fast growing, deciduousplants was proposed by a consulting firm, Geraghty and MillerInc. Recent data indicate poplar trees can remediate a contaminatedwater ...

... with heart disease and stroke." That "something" remains a mystery, but in other studies animals given a vitamin B-6-deficient diet have developed disease, he says. The mechanism for the blood vessel damage is unclear, although other research has suggested that vitamin B-6 deficiency, in addition to rais...

...event expression ofHsp70. This preventer mechanism remains in place only through the most rapidphase of cell division, when the embryo's healthy development would be disruptedby the presence of the heat shock protein. In a later stage of development, the embryo expresses heat shock protein whentemperatures r...

...d may even have adverse consequences,although this remains to be demonstrated. Recently, in a second study involving 133 men, we showed stepwiseimprovements in LDL levels in pattern B, but not pattern A, as dietary fat wasreduced from 40% to 30% to 20% of total calories (the average fat intake in th...

...ar. The samples will be analyzed for themetabolic remains of four hormones linked with the monthly female reproductivecycle -- estrogen, progesterone, luteinizing hormone and follicle stimulatinghormone. While collecting 28,000 samples a year for five years and analyzing themis a daunting task, und...

...ility can occur silently over timeif the infection remains undiagnosed and not treated," said author Thomas C.Quinn, M.D., of NIAID and Johns Hopkins University, Baltimore, Md. "In ourstudy, 6.6 percent of women attending the Baltimore family planning clinics were found to be infected. Because of the initi...

... they are 3 to 5 years old. The intestinal lactase remains high in all infants, except the very rare situation where there is a genetic lack of the enzyme from birth." Savaiano says milk allergies appears in 5 percent of newborns, but that almost all infants outgrow this allergy by their first birthday. "The...

...onal bypasssurgery," says Stegmann. "The question remains to be answered whether FGF-I orother growth factors are able to treat occlusions of greater coronary vessels,but currently, this is not possible." Scientists have used gene therapy to grow vessels in other parts of thebody -- such as in ...

...sive protein.In the absence of usher, this protein remains inside the bacterium, from whereit can be isolated. FimH purified by Hultgren's team recently underwentsuccessful vaccine trials in mice at MedImmune Inc., a biotechnology company inGaithersburg, Md. Human trials should begin later this year. ...

...r individuals with CF, now up to 31.3 years, CF remains fatal. Therefore, life-saving therapeutics must be developed. The mission of the Cystic Fibrosis Foundation is to assure the development of the means to cure and control cystic fibrosis and to improve the quality of life for those wit...

...eam discovered an array of well-preserved skeletal remains of other fossilanimals, including theropod and sauropod dinosaurs, mammals, turtles, snakes,crocodiles and other birds. Another expedition to Madagascar is planned forthis summer. -NSF- NSF is making a transition to a new form of electronic distribu...

...s can, in fact, take such control of their destiny remains to be seen." Price's essay examines the context in which Malthus developed his ideas and their influence on subsequent thinkers. Price points out that Malthus was not "just a country parson," as he is sometimes portrayed, "but a man in touch with th...

...body protected fromnew cancer growth but much work remains to be completed before such an agentcould be available. The potential therapy, which already is being tested in cancer patients,just requires a sample of blood to extract white immune cells and a few cancercells from which to distill the gene...

...ls while in the Dadong cave, largenumbers of rhino remains were discovered in the ancient deposits. Another possibility involves carnivores. Packs of animalscould have killed the large mammals and dragged them back totheir dens. However, a close analysis of the bone fragmentsrevealed a definite human touch. ...

...ing key aspects ofbiology. Yet teaching evolution remains controversial in many of the nation'scommunities and public schools. Some teachers and administrators have said theyare reluctant to teach evolution because of pressures from interest groups todownplay or eliminate it as part of the science curricul...

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